Low-loss fabricated pavement slab and construction method thereof

Abstract

The invention provides a low-loss fabricated pavement slab and a construction method thereof. The low-loss fabricated pavement slab comprises two pavement slabs, L-shaped steps are arranged on the peripheries of the pavement slabs, a T-shaped notch is formed between the two pavement slabs, a plurality of connecting devices and a plurality of resistance wires are arranged between the two pavement slabs, corner rib plates are arranged on the pavement slabs, and the two ends of each connecting device are connected with the different pavement slabs respectively; and sulfur mortar is filled in the T-shaped notch. The L-shaped steps are arranged on the peripheries of the road plates, so that a T-shaped notch is formed between every two adjacent road plates, the T-shaped notches are filled with sulfur mortar, and rainwater is effectively prevented from permeating into the T-shaped notches. The roadbed below the road board does not need to be excessively leveled, and the roadbed can be quickly treated through the foam filling material with enough thick bearing capacity. The hanging holes are formed in the road plate and can be used for hanging the whole structure, ground anchors can be arranged in the hanging holes, connection between the plate body and a foundation is increased, and the stability of the road plate is improved. The road plate is provided with a plurality of corner rib plates, and framework materials such as steel fibers are added to corners, so that the corner strength of the panel is enhanced.

Description

Technical Field

[0001] The present invention relates to the field of road construction, and in particular to a low-loss assembled road panel and a construction method thereof. Background Art

[0002] Temporary roads and sites are increasingly being constructed using prefabricated concrete pavements instead of cast-in-place pavements. Pavement slabs are prefabricated at a prefabrication yard, transported to the site, and hoisted and installed using a crane. On-site, the slabs are then welded with pre-reinforced reinforcement or connected using methods such as anchors and clips. Existing prefabricated concrete slab construction methods primarily include direct laying, mechanical connection, and mortise and tenon joints. However, these methods still present numerous drawbacks.

[0003] 1. Direct paving: Gaps between panels allow rainwater to easily seep into the foundation, causing uneven settlement. Panels can also warp and crush their edges when bearing heavy loads. The lack of rigid connections between panels can lead to slippage and misalignment during vehicle turns, heavy loads, or uneven foundations, resulting in uneven roads and even the risk of overturning. Individual panels, bearing their own weight, struggle to distribute the load, leading to cracking at panel corners and localized settlement. Frequent maintenance and resetting are required, increasing maintenance costs.

[0004] 2. Mechanical connection method: Existing mechanical connection methods have problems such as loose connections after assembly, inability to form an effective whole between panels, and water leakage and seepage at the joints. This can easily lead to the edges and corners of the panels being squeezed and broken, making it difficult to achieve the low-cost and high-reuse effect of prefabricated construction.

[0005] 3. Mortise and tenon joints: Mortise and tenon joints fail to form an effective integral structure, reducing the integrity of the pavement slab. Rainwater easily seeps into the foundation through the gaps, causing uneven settlement. Under heavy loads, the slab is prone to warping, and the edges and corners of the pavement slab are squeezed and damaged, reducing reuse and increasing maintenance costs. Conical foot beams are not conducive to transportation and multiple uses in prefabricated construction. Foot beams are prone to damage from bumps and knocks, reducing the reuse rate of the pavement slab and increasing subsequent costs.

[0006] Another existing prefabricated panel is one in which the mortar solidifies after cooling, so that the prefabricated panels can be tightly spliced ​​together. However, cracks are generated in the mortar during the cooling process, affecting the overall stability of the spliced ​​panels.

[0007] Chinese patent document CN118029224A describes a temporary assembled pavement and its manufacturing method, which uses a mechanical connection method. The connected panels are subjected to uneven forces under heavy loads, and the lower portion of the joint is unconstrained, causing compression and damage at the hinge. Rainwater and other substances can easily seep into the foundation through these gaps, causing uneven settlement. Under heavy loads, the panels are prone to warping, and the edges and corners of the pavement panels are squeezed and broken.

[0008] Chinese patent document CN117166309A describes an assembled concrete traffic pavement and its construction method. This method uses the mortise and tenon joint method, and asphalt is required for filling the gaps between the panels and pouring the troughs, which greatly increases construction costs. At the same time, many projects, such as highway projects, did not have the conditions for producing asphalt in the early stages. Assembled road panels are characterized by high efficiency, environmental protection, and low cost. Summary of the Invention

[0009] The present invention provides a low-loss prefabricated road panel and its construction method, which solves the problems of uneven surface and even overturning of existing prefabricated concrete road panels, the difficulty of distributing the load when individual panels bear the load independently, and the easy occurrence of cracks in the panel corners or local settlement of the foundation, requiring frequent maintenance and resetting, which increases the maintenance cost; water leakage and seepage at the joints; and the inability to form an effective whole, which reduces the integrity of the road panel.

[0010] Another problem solved by the present invention is that the prefabricated panels solidify through mortar after cooling, so that the prefabricated panels can be tightly spliced ​​together. However, cracks are generated during the cooling process of the mortar, affecting the overall stability of the spliced ​​panels.

[0011] To solve the above technical problems, the technical solution adopted by the present invention is: a low-loss assembled road panel and a construction method thereof, comprising two road panels, each of which is provided with an L-shaped step around the road panel, a T-shaped notch formed between the two road panels, a plurality of connecting devices and a plurality of resistance wires provided between the two road panels, angle ribs provided on the road panels, and two ends of the connecting devices respectively connected to different road panels; The T-shaped slots are filled with sulfur mortar.

[0012] In a preferred solution, the road plate is a hollow structure, a plurality of hanging holes are provided on the road plate, an upper steel mesh is provided at the top inside the road plate, and a lower steel mesh is provided at the bottom inside the road plate.

[0013] In a preferred solution, the connecting device includes two bases, a connecting rod is provided between the two bases, shear nails are provided on the top of the bases, and nuts are provided at both ends of the connecting rod.

[0014] In the preferred solution, the two bases are respectively installed on the L-shaped steps of different road plates, the base is provided with a horizontal hole, the top of the base is provided with a flat bottom hole, the connecting rod rests on the horizontal hole, and the shear nail rests on the flat bottom hole.

[0015] In the preferred solution, multiple steel fibers are provided at the vertical corners inside the road slab, one side of the angle rib plate abuts against the inner wall of the L-shaped step of the road slab, the top of the angle rib plate abuts against the top of the inner wall of the road slab, and the bottom of the angle rib plate abuts against the bottom of the inner wall of the road slab.

[0016] In a preferred solution, filling materials are provided at the bottom of the two road plates, the sulfur mortar rests on the filling materials, and the multiple resistance wires are divided into upper resistance wires, middle resistance wires and lower resistance wires.

[0017] In the preferred solution, an adjustment device is provided on one side of the multiple resistance wires, the adjustment device includes a shell, a second resistance wire is provided in the shell, a sliding rod is provided on the shell, a slider is provided on the slider, a movable contact is provided at one end of the slider, the movable contact rests on the second resistance wire, and three toggle sliders are provided on one side of the second resistance wire.

[0018] In the preferred solution, the three toggle sliders are respectively connected to different layers of resistance wires, a guide rod is provided in the shell, a transverse groove is provided on one side of the shell, the toggle slider includes a second slider, the second slider slides against the guide rod, a second contact is provided at one end of the second slider, the second contact rests on the second resistance wire, a toggle block is provided at one end of the second slider, the toggle block slides against the transverse groove.

[0019] In the preferred solution, an electrical socket is provided on one side of the adjustment device, and a first socket, a second socket and a third socket are provided on the electrical socket. The first socket, the second socket and the third socket are respectively connected to the contact points of the three toggle sliders through cables. An electrical plug is provided on one side of the electrical socket, and the three plugs of the electrical plug are connected to the upper resistance wire, the middle resistance wire and the lower resistance wire through cables.

[0020] A construction method for low-loss prefabricated road panels, characterized by: S1, pre-construction preparation: determining the number of road panels based on the area of ​​the planned site and the size of the road panels, and hoisting and transporting multiple road panels; S2: Level the road surface foundation, install filling materials, assemble and adjust the road slabs, and install the base on the L-shaped steps of the road slabs, connecting them with shear nails and connecting rods; S3. Resistance wire arrangement: Arrange the upper, middle, and lower layers of resistance wires. Connect the three plugs of the power plug to the upper, middle, and lower layers of resistance wires via cables. Connect the adjustment device to the power supply. Connect the power socket to the power plug. The power plug is properly inserted into the power socket. S4. Sulfur mortar pouring: The sulfur mortar is poured. Pull the slider to adjust the overall temperature. Slide multiple sliders to accurately adjust the temperature of the resistance wires in different layers. From top to bottom, the temperature of each layer of resistance wire decreases until the sulfur mortar is poured and fills the T-shaped notch. S5. Sulfur mortar cooling: unplug the power plug, insert it into the power socket backwards, pull the slider to adjust the overall temperature initially, slide multiple sliders to accurately adjust the temperature of the resistance wires in different layers. From top to bottom, the temperature of each layer of resistance wire increases. During the cooling process of the sulfur mortar, slowly slide the slider to reduce the overall resistance wire temperature to room temperature.

[0021] The beneficial effects of this invention are as follows: L-shaped steps are provided around the road slabs, creating a T-shaped notch between two adjacent road slabs. This T-shaped notch is filled with sulfur mortar. Because sulfur mortar melts and condenses upon heating, a resistance wire is placed within the T-shaped gap. When removal is required, heating the sulfur mortar to a molten state allows for rapid removal. At room temperature, the two road slabs and the sulfur mortar form a single unit, effectively preventing rainwater infiltration.

[0022] The roadbed under the road slab does not need to be excessively leveled. The roadbed can be quickly treated by filling it with foam with sufficient bearing capacity. When the roadbed stiffness is uneven, the roadbed can be quickly treated by filling it with foam with sufficient bearing capacity.

[0023] The road slab is equipped with lifting holes for hoisting the entire structure. Ground anchors can be placed in these holes, depending on the actual situation, to strengthen the connection between the slab and the foundation and improve the stability of the road slab. The road slab is equipped with multiple corner ribs, and steel fiber and other skeletal materials are added to the corners during prefabrication to enhance the corner strength of the panel.

[0024] Multiple resistors are installed, allowing for airtight filling of slots and rapid removal of road panels when energized. Shear spikes further strengthen the connection between the panels and the sulfur mortar, connecting each road panel to the sulfur mortar filling material in the T-slots. Under load, they effectively transfer horizontal shear forces at the interface between the road panel and the sulfur mortar, ensuring the synergy between the two materials. This enhances structural connection strength and shear resistance. They also limit interfacial slip, preventing the sulfur mortar from being lifted, ensuring that each road panel forms an effective, integrated whole, sharing the load.

[0025] The regulating device controls the temperature of multiple layers of resistance wires, precisely regulating the temperature of each layer as the sulfur mortar melts. This ensures a sequential decrease in the temperature of the wire layers from top to bottom, ensuring rapid and effective melting during sulfur mortar pouring and shortening construction time. The two temperature regulators precisely control the temperature of each layer, preventing mortar performance changes caused by temperature fluctuations and ensuring temperature stability. This prevents temperature gradients between different layers of the sulfur mortar during cooling, which could generate thermal stress within the mortar and lead to cracks. This system also prevents the overall temperature of the sulfur mortar from dropping too quickly during cooling, which could lead to uneven internal structure and incomplete crystal growth, resulting in reduced strength and cracking. This system has significant potential for widespread adoption. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below with reference to the accompanying drawings and examples; Figure 1 It is an axonometric view of the overall structure of the present invention; Figure 2It is a front view of the overall structure of the present invention; Figure 3 It is an exploded view of the overall structure of the present invention; Figure 4 It is an axonometric view of a partial structure of the present invention; Figure 5 This invention Figure 4 A magnified view of ; Figure 6 is an axial side view of the angle rib plate of the present invention; Figure 7 is an axonometric view of the adjustment device of the present invention; Figure 8 is a half-section view of the regulating device of the present invention; Figure 9 This invention Figure 8 Magnified view of middle B; Figure 10 This invention Figure 8 Magnified view of middle C; Figure 11 It is a structural schematic diagram of a local structure of the present invention; In the figure: road plate 1; outer panel 101; hanging hole 102; L-shaped step 103; resistance wire 2; adjustment device 3; housing 301; sliding rod 302; slider 303; movable contact 3031; second resistance wire 304; toggle slider 305; contact point 3051; second slider 3052; toggle block 3053; second contact 3054; through hole 3055; guide rod 306; transverse groove 307; connecting device 4; base 401; transverse hole 4011; flat-bottom hole 4012; connecting rod 402; shear nail 403; nut 404; steel fiber 5; angle rib 6; power socket 7; first socket 701; second socket 702; third socket 703; power plug 8; plug 801; sulfur mortar 9; filling material 10; upper steel mesh 11; lower steel mesh 12. DETAILED DESCRIPTION Example 1

[0027] like Figure 1-11 A low-loss assembled road panel and its construction method include two road panels 1, each of which is provided with an L-shaped step 103 around the road panel 1, a T-shaped notch formed between the two road panels 1, a plurality of connecting devices 4 and a plurality of resistance wires 2 are provided between the two road panels 1, and an angle rib 6 is provided on the road panel 1. The two ends of the connecting device 4 are respectively connected to different road panels 1; The T-shaped slot is filled with sulfur mortar 9. With this structure, L-shaped steps 103 are provided around the perimeter of the road slabs 1, creating a T-shaped slot between two adjacent road slabs 1. This "T" slot is filled with sulfur mortar 9. Because sulfur mortar 9 melts and condenses upon heating, a resistance wire 2 is placed within the "T"-shaped gap. When removal is necessary, heating the sulfur mortar 9 to a molten state allows for rapid removal. At room temperature, the two road slabs 1 and the sulfur mortar 9 form a single unit, effectively preventing rainwater infiltration.

[0028] The roadbed under the road slab 1 does not need excessive leveling, and the roadbed can be quickly processed by the foam filling material 10 with sufficient bearing capacity. When the roadbed stiffness is uneven, the roadbed can be quickly processed by the foam filling material 10 with sufficient bearing capacity.

[0029] Lifting holes 102 are provided on the road slab 1 for hoisting the entire structure. Ground anchors can be placed in these holes, depending on the actual situation, to strengthen the connection between the slab and the foundation and enhance the stability of the road slab 1. The road slab 1 is equipped with multiple corner ribs 6. During prefabrication, steel fiber 5 and other skeletal materials are added to the corners to enhance the panel's corner strength.

[0030] The multiple resistor wires 2 allow for sealed slot filling and rapid removal of the road slabs 1 by simply energizing them when needed. Shear pins 403 further strengthen the connection between the slabs 1 and the sulfur mortar 9, connecting each road slab 1 to the sulfur mortar 9 filling the T-slots. Under load, they effectively transmit horizontal shear forces at the interface between the road slab 1 and the sulfur mortar 9, ensuring the synergistic effect of the two materials. This improves the structural connection strength and shear resistance. Furthermore, they limit interfacial slip, preventing the sulfur mortar 9 from being "lifted off," ensuring that each road slab 1 forms an effective, integrated whole, sharing the load.

[0031] The connecting device 4 within the T-slot forms a slab framework through connecting rods 402, with densely packed high-strength sulfur mortar 9 serving as the filler. Shear studs 403 further strengthen the synergistic effect between the road slab 1 and the sulfur mortar 9, fundamentally resolving the problem of gaps between the slabs, through which rainwater and other substances seep into the foundation, causing uneven foundation settlement. This, in turn, can cause the slabs to warp under heavy loads, squeezing the edges and corners and causing damage.

[0032] When the stiffness of the original roadbed is uneven, the foam filling material 10 with sufficient bearing capacity can be directly used for roadbed treatment. The lightweight and high-strength characteristics can make the roadbed stiffness and bearing capacity meet the use requirements. At the same time, the construction is fast and efficient, and there is no need to replace high-strength soil, which greatly reduces the construction cost.

[0033] When the sulfur mortar 9 begins to be poured, the upper resistance wire 2 needs to be set at a higher level for pouring, so that the mortar can melt quickly and reach the required molten state. A faster heating rate is required so that the upper mortar can reach the melting temperature in a shorter time and improve production efficiency. The high temperature zone above the middle resistance wire 2 further heats the mortar that has begun to melt, so that it can be mixed and melted more evenly, and at the same time provides heat conduction for the melting of the lower mortar. The resistance wire 2 of the lower layer is set to a relatively low temperature, in order to maintain the molten state of the mortar and prevent it from solidifying prematurely, while providing appropriate temperature conditions for the discharge or subsequent processing of the mortar. The overall resistance wire 2 must be heated at a controlled rate to melt the sulfur mortar 9 while avoiding excessive thermal stress caused by heating too quickly, damaging the equipment or causing local overheating of the mortar.

[0034] At this time, the power plug 8 is connected to the power socket 7. The upper resistance wire 2 is connected to the leftmost slider 305, and the lower resistance wire 2 is connected to the rightmost slider 305. The slider 305 corresponding to the upper resistance wire 2 has the highest voltage, so that the temperature of the upper resistance wire 2 is the highest, and the temperature of the resistance wire 2 layers decreases from top to bottom. By moving the position of the slide bar 302 to control the position of the slider 303, the voltage of the overall structure is initially adjusted. By moving the multiple sliders 305, the temperature of the resistance wire 2 of different layers is accurately adjusted. At the same time, it is ensured that the temperature of the resistance wire 2 layers from top to bottom decreases, ensuring that the sulfur mortar 9 is cast and melted quickly, with good melting effect, saving construction time, and the two temperature adjustments can accurately control the temperature of different layers, avoid changes in mortar performance caused by temperature fluctuations, and ensure temperature stability.

[0035] When the sulfur mortar 9 is cooled after melting, the upper resistance wire 2 is set to the lowest level, while the lower resistance wire 2 is relatively hot. The upper part is directly in contact with the air, with a large heat dissipation area, which dissipates heat quickly and causes the temperature to drop rapidly. However, the lower part is in contact with the ground or other supporting objects, which generally have poorer thermal conductivity than air and hinder heat dissipation, causing heat accumulation in the lower part and a relatively high temperature.

[0036] At this point, the power plug 8 is reversed from the power socket 7, and the temperature of the resistance wire 2 layers increases sequentially from top to bottom through the position of the slider 303, causing the temperature of the entire structure to slowly decrease, controlling the initial voltage adjustment of the entire structure. During this entire process, the slider 303 gradually moves to the side of the second resistance wire 304, and the output voltage gradually decreases to 0. The entire process achieves slow cooling. By displacing the multiple sliders 305, the temperature of the resistance wire 2 layers at different levels is precisely adjusted, ensuring that the temperature of the resistance wire 2 layers increases sequentially from top to bottom. The two temperature adjustment methods can accurately control the temperature of different layers. The entire structure can accurately control the temperature while slowly cooling the sulfur mortar 9 as it cools, avoiding the formation of temperature gradients at different heights of the sulfur mortar 9 during cooling. This temperature difference can cause thermal stress within the mortar, leading to cracks. It also prevents the temperature of the entire sulfur mortar 9 from dropping too quickly, which can cause uneven internal structure formation and incomplete crystal growth, resulting in reduced strength and cracks, affecting the performance and service life of the sulfur mortar.

[0037] In a preferred embodiment, the road slab 1 is a hollow structure with multiple lifting holes 102 provided therein. An upper reinforcement mesh 11 is provided at the top of the interior of the road slab 1, and a lower reinforcement mesh 12 is provided at the bottom of the interior of the road slab 1. With this structure, the lifting holes 102 provided on the road slab 1 can be used to lift the entire structure. Furthermore, ground anchors can be placed in these holes, depending on the actual situation, to strengthen the connection between the slab and the foundation and improve the stability of the road slab 1.

[0038] The road slab 1 is provided with a plurality of corner ribs 6 , and skeleton materials such as steel fibers 5 are added to the corners during prefabrication. The lower steel mesh 12 and the upper steel mesh 11 simultaneously enhance the strength of the road slab 1 .

[0039] In a preferred embodiment, the connecting device 4 includes two bases 401, with a connecting rod 402 disposed between them. Shear studs 403 are located on top of the bases 401, and nuts 404 are installed at each end of the connecting rod 402. With this structure, the connecting device 4 is installed on the L-shaped step 103. The connecting device 4 includes shear studs 403, which strengthen the connection between the road slab 1 and the sulfur mortar 9 in the "T"-shaped notch, thereby enhancing the integrity of the road slab 1. Connecting rods 402 are located between the shear studs 403 and connected by nuts 404. The number of connecting rods 402 is adjusted according to different situations. Generally, three connecting rods 402 are installed in the center and on both sides of each road slab 1. If heavy loads are required, the overall rigidity of the road slab 1 can be enhanced by increasing the number of reinforcing rods.

[0040] In a preferred embodiment, two bases 401 are mounted on the L-shaped steps 103 of different road slabs 1. Bases 401 are provided with transverse holes 4011 and flat-bottomed holes 4012 at their tops. Connecting rods 402 abut against transverse holes 4011, and shear pins 403 abut against flat-bottomed holes 4012. With this structure, a connecting device 4 is provided on the L-shaped steps 103. Connecting device 4 includes shear pins 403, which strengthen the connection between the road slab 1 and the sulfur mortar 9 in the T-shaped notch, thereby enhancing the integrity of the road slab 1. Connecting rods 402 are provided between the shear pins 403 and connected by nuts 404. The number of connecting rods 402 is adjusted based on the specific situation. Generally, three connecting rods 402 are provided in the center and on both sides of each road slab 1. If heavy loads are to be borne, the overall rigidity of the road slab 1 can be enhanced by increasing the number of reinforcing rods.

[0041] The roadbed under the road slab 1 does not need excessive leveling, and the roadbed can be quickly processed by the foam filling material 10 with sufficient bearing capacity. When the roadbed stiffness is uneven, the roadbed can be quickly processed by the foam filling material 10 with sufficient bearing capacity.

[0042] In the preferred embodiment, multiple steel fibers 5 are provided at the vertical corners of the road slab 1. One side of the angle rib 6 abuts against the inner wall of the L-shaped step 103 of the road slab 1, the top of the angle rib 6 abuts against the top of the inner wall of the road slab 1, and the bottom of the angle rib 6 abuts against the bottom of the inner wall of the road slab 1. With this structure, the road slab 1 is surrounded by angle ribs 6. At the same time, steel fibers 5 and other skeleton materials are added to the edges during prefabrication to enhance edge strength.

[0043] In the preferred embodiment, a filling material 10 is provided at the bottom of the two road slabs 1, and the sulfur mortar 9 rests on the filling material 10. The multiple resistance wires 2 are divided into an upper layer of resistance wires 2, a middle layer of resistance wires 2, and a lower layer of resistance wires 2. With this structure, the sulfur mortar 9 is a thermoplastic composite material with sulfur as a cementitious material. After curing, the sulfur mortar 9 has a compressive strength of 40-60 MPa, and within 48 hours, the strength can reach 65% of the ultimate bearing capacity, quickly forming a bearing capacity. At the same time, it has excellent fatigue resistance and can withstand repeated loads and dynamic impacts. It hardens quickly and strengthens early, and can reach the use strength 0.5-2 hours after pouring, greatly shortening the construction period. The sulfur mortar 9 is corrosion-resistant and has good tolerance to most inorganic salt, neutral salt, and acid salt environments, making it fully suitable for construction site environments.

[0044] In a preferred embodiment, an adjustment device 3 is provided on one side of the plurality of resistance wires 2. The adjustment device 3 includes a housing 301, within which a second resistance wire 304 is disposed. A sliding rod 302 is provided on the housing 301, and a slider 303 is provided on the slider 302. A movable contact 3031 is provided at one end of the slider 303, which abuts against the second resistance wire 304. Three toggle sliders 305 are provided on one side of the second resistance wire 304. With this structure, the power socket 7 has three jacks and the power plug 8 has three plugs 801. When the power socket 7 and the power plug 8 are connected, the leftmost plug 801 is connected to the first jack 701 of the power socket 7, and the rightmost plug 801 is connected to the third jack 703 of the power socket 7.

[0045] When the power socket 7 and the power plug 8 are reversely connected, the leftmost plug 801 is connected to the third socket 703 of the power socket 7 , and the rightmost plug 801 is connected to the first socket 701 of the power socket 7 .

[0046] In the preferred embodiment, the three toggle sliders 305 are respectively connected to the resistance wires 2 at different layers. A guide rod 306 is provided in the housing 301, and a transverse groove 307 is provided on one side of the housing 301. The toggle slider 305 includes a second slider 3052, which slides against the guide rod 306. A second contact 3054 is provided at one end of the second slider 3052, which slides against the second resistance wire 304. A toggle block 3053 is provided at one end of the second slider 3052, which slides against the transverse groove 307. With this structure, In the preferred embodiment, a power socket 7 is provided on one side of the adjustment device 3. This socket 7 is equipped with a first jack 701, a second jack 702, and a third jack 703. These jacks are connected to the contact points 3051 of the three toggle sliders 305 via cables. A power plug 8 is provided on one side of the power socket 7. The three plugs of the power plug 8 are connected to the upper, middle, and lower resistance wires 2 via cables. With this structure, the slide bar 302 acts as a conductive rod. The left end of the slide bar 302 is connected to the power source, while the other end is insulated. A worker adjusts the position of the slider 303 by pushing the slide bar 302. A temperature sensor is provided on the resistance wire 2.

[0047] When the sulfur mortar 9 begins to be poured, the power plug 8 is connected to the power socket 7. The upper resistance wire 2 is connected to the leftmost slider 305, and the lower resistance wire 2 is connected to the rightmost slider 305. The slider 305 corresponding to the upper resistance wire 2 has the highest voltage, so that the temperature of the upper resistance wire 2 is the highest, and the temperature of the resistance wire 2 layers decreases from top to bottom. By moving the position of the slide bar 302 to control the position of the slider 303, the voltage of the overall structure is initially adjusted. By moving the multiple sliders 305, the temperature of the resistance wire 2 of different layers is accurately adjusted. At the same time, it is ensured that the temperature of the resistance wire 2 layers decreases from top to bottom, ensuring that the sulfur mortar 9 is poured and melted quickly, with good melting effect, saving construction time, and the two temperature adjustments can accurately control the temperature of different layers, avoid changes in mortar performance caused by temperature fluctuations, and ensure temperature stability.

[0048] When the sulfur mortar 9 cools after melting, the power plug 8 is reversed from the power socket 7. The temperature of the resistance wire 2 layers increases sequentially from top to bottom, passing through the position of the slider 303, causing the temperature of the entire structure to slowly decrease, controlling the initial voltage regulation of the entire structure. During this process, the slider 303 gradually moves to the side of the second resistance wire 304, and the output voltage gradually decreases to 0. This entire process achieves a slow cooling effect. By moving the multiple sliders 305, the temperature of the resistance wire 2 layers is precisely regulated, ensuring that the temperature of the resistance wire 2 layers increases sequentially from top to bottom. These two temperature adjustments enable precise control of the temperature of different layers. The entire structure can accurately control the temperature of the sulfur mortar 9 while slowly cooling. This prevents the formation of temperature gradients at different heights of the sulfur mortar 9 during cooling. This temperature difference can cause thermal stress within the mortar, leading to cracks. It also prevents the temperature of the entire sulfur mortar 9 from dropping too quickly, which can lead to uneven internal structure formation and incomplete crystal growth, resulting in reduced strength and cracks, affecting the performance and service life of the sulfur mortar. Example 2

[0049] Further illustrate with reference to Example 1: A construction method for low-loss assembled road panels, characterized by: S1, pre-construction preparation: determining the number of road panels 1 according to the area of ​​the planned site, and determining the size of the road panels 1, and hoisting and transporting multiple road panels 1; S2. Level the road foundation, install the filling material 10, assemble and adjust the road slab 1, and install the base 401 on the L-shaped step 103 of the road slab 1, connecting it with the shear nails 403 and the connecting rods 402; S3. Arrangement of resistance wires 2: Arrange the upper, middle, and lower layers of resistance wires 2. The three plugs of the power plug 8 are connected to the upper, middle, and lower layers of resistance wires 2 via cables. The adjustment device 3 is connected to the power supply. The power socket 7 is connected to the power plug 8. The power plug 8 is inserted into the power socket 7. S4. Casting of sulfur mortar 9: The sulfur mortar 9 is cast. The sliding bar 302 is pulled to initially adjust the overall temperature. The multiple sliders 305 are slid to accurately adjust the temperature of the resistance wires 2 in different layers. From top to bottom, the temperature of each layer of resistance wires 2 decreases until the sulfur mortar 9 is cast and fills the T-shaped notch. S5. Cooling of the sulfur mortar 9: Unplug the power plug 8, and insert the power plug 8 into the power socket 7 in reverse. Pull the slide bar 302 to initially adjust the overall temperature. Slide multiple sliders 305 to accurately adjust the temperature of the resistance wires 2 in different layers. From top to bottom, the temperature of each layer of the resistance wires 2 increases. During the cooling process of the sulfur mortar 9, slowly slide the slide bar 302 to reduce the temperature of the entire resistance wire 2 to room temperature.

[0050] The above embodiments are merely preferred technical solutions of the present invention and should not be construed as limiting the present invention. The scope of protection of the present invention shall be the technical solutions set forth in the claims, including equivalent alternatives to the technical features of the technical solutions set forth in the claims. In other words, equivalent alternatives and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A low-loss assembled road panel, characterized by: The invention comprises two road plates (1), wherein L-shaped steps (103) are provided around the road plates (1), a T-shaped notch is formed between the two road plates (1), a plurality of connecting devices (4) and a plurality of resistance wires (2) are provided between the two road plates (1), an angle rib plate (6) is provided on the road plates (1), and two ends of the connecting device (4) are respectively connected to different road plates (1); The T-shaped notch is filled with sulfur mortar (9).

2. The low-loss assembled road panel according to claim 1, characterized in that: The road plate (1) is a hollow structure. A plurality of hanging holes (102) are provided on the road plate (1). An upper steel mesh (11) is provided at the top of the road plate (1), and a lower steel mesh (12) is provided at the bottom of the road plate (1).

3. The low-loss assembled road panel according to claim 1, characterized in that: The connecting device (4) comprises two bases (401), a connecting rod (402) is provided between the two bases (401), a shear nail (403) is provided on the top of the base (401), and nuts (404) are provided at both ends of the connecting rod (402).

4. The low-loss assembled road panel according to claim 3, characterized in that: The two bases (401) are respectively installed on the L-shaped steps (103) of different road plates (1), the base (401) is provided with a transverse hole (4011), the top of the base (401) is provided with a flat-bottom hole (4012), the connecting rod (402) abuts against the transverse hole (4011), and the shear nail (403) abuts against the flat-bottom hole (4012).

5. The low-loss assembled road panel according to claim 1, characterized in that: A plurality of steel fibers (5) are provided at vertical corners inside the road plate (1), one side of the angle rib plate (6) abuts against the inner wall of the L-shaped step (103) of the road plate (1), the top of the angle rib plate (6) abuts against the top of the inner wall of the road plate (1), and the bottom of the angle rib plate (6) abuts against the bottom of the inner wall of the road plate (1).

6. The low-loss assembled road panel according to claim 1, characterized in that: Filling material (10) is provided at the bottom of the two road plates (1), sulfur mortar (9) abuts against the filling material (10), and the plurality of resistance wires (2) are divided into an upper layer resistance wire (2), a middle layer resistance wire (2), and a lower layer resistance wire (2).

7. The low-loss assembled road panel according to claim 1, characterized in that: An adjustment device (3) is provided on one side of the plurality of resistance wires (2), the adjustment device (3) comprising a housing (301), a second resistance wire (304) being provided in the housing (301), a sliding rod (302) being provided on the housing (301), a slider (303) being provided on the slider (302), a movable contact (3031) being provided at one end of the slider (303), the movable contact (3031) being in contact with the second resistance wire (304), and three toggle sliders (305) being provided on one side of the second resistance wire (304).

8. The low-loss assembled road panel according to claim 7, characterized in that: The three toggle sliders (305) are respectively connected to the resistance wires (2) of different layers. A guide rod (306) is provided in the housing (301). A transverse groove (307) is provided on one side of the housing (301). The toggle slider (305) includes a second slider (3052). The second slider (3052) slides against the guide rod (306). A second contact (3054) is provided at one end of the second slider (3052). The second contact (3054) abuts against the second resistance wire (304). A toggle block (3053) is provided at one end of the second slider (3052). The toggle block (3053) slides against the transverse groove (307).

9. The low-loss assembled road panel according to claim 8, characterized in that: One side of the regulating device (3) is provided with an electric socket (7), and the electric socket (7) is provided with a first jack (701), a second jack (702), and a third jack (703). The first jack (701), the second jack (702), and the third jack (703) are connected to the contact points (3051) of the three toggle sliders (305) in sequence through cables. One side of the electric socket (7) is provided with an electric plug (8), and the three plugs of the electric plug (8) are connected to the upper resistance wire (2), the middle resistance wire (2), and the lower resistance wire (2) in sequence through cables.

10. A construction method for a low-loss prefabricated road panel according to any one of claims 1 to 9, characterized in that: S1. Preparation before construction: determine the number of road slabs (1) according to the area of ​​the site to be built, determine the size of the road slabs (1), and lift and transport multiple road slabs (1); S2, the road foundation is leveled, the filling material (10) is installed, the road plate (1) is assembled and adjusted, and at the same time, the base (401) is installed on the L-shaped step (103) of the road plate (1), and connected by shear nails (403) and connecting rods (402); S3. Arrangement of resistance wires (2): Arrange the upper, middle and lower layers of resistance wires (2), the three plugs of the power plug (8) are connected to the upper, middle and lower layers of resistance wires (2) respectively through cables, the adjustment device (3) is connected to the power supply, the power socket (7) is connected to the power plug (8), and the power plug (8) is inserted into the power socket (7); S4, pouring of sulfur mortar (9): pouring of sulfur mortar (9), pulling of the slide bar (302), initial adjustment of the overall temperature, sliding of multiple sliders (305), precise adjustment of the temperature of the resistance wires (2) of different layers, from top to bottom, the temperature of each layer of resistance wires (2) decreases until the sulfur mortar (9) is poured and fills the T-shaped notch; S5. Cooling of the sulfur mortar (9): Unplug the power plug (8), insert the power plug (8) into the power socket (7) in reverse, pull the slide bar (302), and initially adjust the overall temperature. Slide multiple sliders (305) to accurately adjust the temperature of the resistance wires (2) in different layers. From top to bottom, the temperature of each layer of the resistance wire (2) increases. During the cooling process of the sulfur mortar (9), slowly slide the slide bar (302) to reduce the temperature of the overall resistance wire (2) to room temperature.

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